Instruction Manual

Caterpillar: Non-Confidential
After the lifting cylinder pin assembly
Oil Addition Schedule
Add lubrication once every two working
days (this schedule should be strictly
enforced so that the lubrication is added
every two days)
Notices for adding
Lubrication
Wipe off excess oil
：
After adding lubrication, the excess oil
should be removed. Be sure to avoid the
oil-nozzle from absorbing impurities or
build-up in the nozzle or next time
lubrication is added the dirt will be released
into the joint。
Main Transmission Shaft
Flow Process
：
Currently the production of the 50 and 60
wheel loader transmission shaft is
maintenance-free, but after 2400
maintenance-free working hours it is
necessary to maintain and service the
transmission. The following is the
recommended maintenance procedures (in
cases of extreme working conditions,
perform the scheduled maintenance before
the time specified):
1. The current shaft used is an Exxon
Mobile Corporation UNIREX, which
recommends the use of high-quality roller
bearing grease.
2. Between 2400 and 4800 working
hours maintain the machine at intervals
less than 1200 working hours.
3. After 4800 working hours, complete
maintenance at intervals less than 600
working hours.
Important: Due to the different lubrication
mixtures that may occur leading to
decreased performance, Caterpillar
(Qingzhou) Ltd. does not recommend the
use of any other types of lubrication, but if
it is necessary to use a different type of
lubrication the user must use common
lithium-based grease, the purposed
maintenance schedule is as follows:
1. Between 2400 and 4800 working
hours maintain the machine at intervals
less than 600 working hours.
2. After 4800 working hours, complete
maintenance at intervals less than 300
working hours.
Maintenance-free universal joints are a
result of the multi-shaft lip-type seal
structure in order to ensure the sealing
performance, it is required that the
lubrication is added with a gun at a
pressure of more than 40Mpa